Patents by Inventor Jean C. Poignant

Jean C. Poignant has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4943577
    Abstract: The invention relates to compounds of formula I ##STR1## in which R.sub.1 and R.sub.2 form together and with the piperazine-2,6-dione radical to which they are attached a hexahydropyrazino-.beta.-cabbolinedione radical,R.sub.3 denotes a pyrimidinyl radical or a phenyl radical optionally substituted by an alkyl radical of 1 to 4 carbon atoms or a trifluoromethyl radical,n is an integer of 2 to 4, inclusive.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: July 24, 1990
    Assignee: Adir Et Cie
    Inventors: Gilbert Lavielle, Jean C. Poignant
  • Patent number: 4885373
    Abstract: Compounds of general formula I, ##STR1## in which: R.sub.1 denotes a hydrogen atom or, with the proviso, however, that the amino radical is at the 7-position, a linear or branched alkyl radical containing 1 to 4 carbon atoms,R.sub.2 denotes a hydrogen atom or, with the proviso, however, that the amino radical is at the 6-position, a linear or branched alkyl radical containing 1 to 4 carbon atoms,R.sub.3 and R.sub.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: December 5, 1989
    Assignee: ADIR Et Cie
    Inventors: Jean L. Peglion, Jean C. Poignant, Joel Vian
  • Patent number: 4874878
    Abstract: Compounds of the general formula I ##STR1## in which R.sub.1 and R.sub.2, which may be identical or different, each denote a hydrogen atom, a benzyl radical, a cyclohexylmethyl radical or a linear or branched alkyl radical containing from 1 to 10 carbon atoms, optionally substituted with a hydroxy radical, with a carboxy radical or with an alkoxy radical having 1 to 5 carbon atoms, with an alkoxycarbonyl radical having 2 to 6 carbon atoms, with an alkylphenyl radical having 7 to 16 carbon atoms or with a 2-alkylthienyl radical having 5 to 14 carbon atoms,R.sub.3 denotes a hydrogen atom or a linear or branched alkyl radical containing from 1 to 4 carbon atoms,A denotes a single bond or a methylene radical, or a radical of formula ##STR2## in which R.sub.4 is a linear or branched alkyl radical containing from 1 to 4 carbon atoms.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: October 17, 1989
    Assignee: Adir Et Cie
    Inventors: Jean L. Peglion, Jean C. Poignant, Joel Vian
  • Patent number: 4863951
    Abstract: Compounds of general formula I, ##STR1## in which: R.sub.1 denotes a hydrogen atom or, with the proviso, however, that the amino radical is at the 7-position, a linear or branched alkyl radical containing 1 to 4 carbon atoms,R.sub.2 denotes a hydrogen atom or, with the proviso, however, that the amino radical is at the 6-position, a linear or branched alkyl radical containing 1 to 4 carbon atoms,R.sub.3 and R.sub.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: September 5, 1989
    Assignee: ADIR Et Cie
    Inventors: Jean L. Peglion, Jean C. Poignant, Joel Vian
  • Patent number: 4851429
    Abstract: Compound of general formula I ##STR1## in which R.sub.1 and R.sub.2, which may be identical or different, each denote a hydrogen atom, a benzyl radical, a cyclohexylmethyl radical or a linear or branched alkyl radical containing from 1 to 10 carbon atoms, optionally substituted with a hydroxy radical, with a carboxy radical or with an alkoxy radical having 1 to 5 carbon atoms, with an alkoxycarbonyl radical having 2 to 6 carbon atoms, with an alkylphenyl radical having 7 to 16 carbon atoms or with a 2-alkylthienyl radical having 5 to 14 carbon atoms,R.sub.3 denotes a hydrogen atom or a linear or branched alkyl radical containing from 1 to 4 carbon atoms,A denotes a single bond or a methylene radical, or a radical of formula ##STR2## in which R.sub.4 is a linear or branched alkyl radical containing from 1 to 4 carbon atoms.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: July 25, 1989
    Assignee: Adir et Cie
    Inventors: Jean L. Peglion, Jean C. Poignant, Joel Vian
  • Patent number: 4820707
    Abstract: The invention relates to 2,6-piperazinedione derivatives of general formula I ##STR1## in which: A and B each denote a methylene radical or a carbonyl radical with the proviso, however, that A and B never simultaneously denote the same radical,R.sub.1 denotes a diphenylmethyl radical optionally substituted on the benzene rings with a halogen atom, a cyclohexyl radical, a pyridylmethyl group, or a benzyl radical optionally substituted with a halogen atom or with an alkoxy radical containing from 1 to 4 carbon atoms,R.sub.2 denotes a pyrimidinyl radical or a phenyl radical optionally substituted with a halogen atom, with an alkyl radical having from 1 to 4 carbon atoms, with a trifluoromethyl radical or with an alkoxy radical containing from 1 to 4 carbon atoms,n is an integer from 2 to 4,and their addition salts with a pharmaceutically acceptable inorganic or organic acid.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: April 11, 1989
    Assignee: ADIR Et Cie
    Inventors: Gilbert Lavielle, Jean C. Poignant
  • Patent number: 4766114
    Abstract: The invention concerns 5-[(3-chloro-6-methyl-5,5-dioxo-6,11-dihydro-dibenzo (c,f) (1,2) thiazepin-11-yl)-amino] pentanoic acid.Medicament.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: August 23, 1988
    Assignee: ADIR Et Compagnie
    Inventors: Charles Malen, Jean C. Poignant